There are one billion poor people in the world who are vulnerable to climate change, desertification, land degradation, loss of biodiversity, water scarcity and shortage of fossil fuels. India alone accounts for 25.93% of this population and China 16.66%. The remaining part of Asia and Pacific accounts for 18.30%. In short, Asia is a hub where the poor, undernourished and the vulnerable live. This is followed by sub-Saharan Africa , which accounts for 23.94% of the one billion.